CN201461669U - Positioning bolt - Google Patents
Positioning bolt Download PDFInfo
- Publication number
- CN201461669U CN201461669U CN2009200759789U CN200920075978U CN201461669U CN 201461669 U CN201461669 U CN 201461669U CN 2009200759789 U CN2009200759789 U CN 2009200759789U CN 200920075978 U CN200920075978 U CN 200920075978U CN 201461669 U CN201461669 U CN 201461669U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- bolt
- holding down
- down bolt
- expansion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012856 packing Methods 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B3/00—Key-type connections; Keys
- F16B3/06—Key-type connections; Keys using taper sleeves
Landscapes
- Dowels (AREA)
Abstract
The utility model discloses a positioning blot, which comprises a bolt, a nut connected with the bolt, a gasket, a check ring and a sleeve arranged on the bolt. The inner wall of the sleeve is tapered. The side wall of the sleeve is provided with two or more than two expanding grooves along the axial direction. One end of the expanding groove extends to one opening part of the sleeve and the body of the bolt is provided with one taper matched with the inner taper of the sleeve. The positioning bolt adopts the sleeve with the expandable structure so that the bolt can not be limited by the size change of the inner diameter of a reamed hole within a certain range and the application range is broadened. The inner tapered design of the sleeve can finish the positioning work between the two reamed holes well and eliminate the positioning clearance completely. At the same time, the utility model has the advantages of convenient dismantlement and long service life and does not tend to damage the inner diameter precision of the reamed holes.
Description
Technical field
The utility model relates to a kind of holding down bolt, particularly a kind of taper shell type holding down bolt.
Background technique
When installing according to shipbuilding quality standard diesel engine main frame, the aperture of articulation hole is when the 18-50 millimeter, and the critical field of its Spielpassung and interference fit is 0.005 millimeter, and its tolerance limit is respectively 0.010 millimeter and 0.005 millimeter; The aperture is during greater than the 50-120 millimeter, and the critical field of its Spielpassung is 0.010 millimeter, and tolerance limit is 0.015 millimeter, and the critical field of its interference fit is 0 millimeter, and tolerance limit is 0.005 millimeter.The side-play amount at host output shaft flange and jack shaft forward flange place is not more than 0.10 millimeter, and the warpage degree is ± D
34/ 10000; Host output shaft Flange Plane and jack shaft forward flange plane contact gap are not more than 0.05 millimeter.This shows that diesel main engine is installed and fastening requirement is very high.
In using Boring machine processing articulation hole process, can not once take installation and machining, carrying out bore hole for 3-4 time and just can finish whole processing work but will rotate to an angle synchronously through diaxon.Three copper material of available technology adopting locating stud is pressed in the finished aperture and positions, and rotates diaxon then synchronously.But there is following defective in this method: at first, the copper material costs an arm and a leg; Secondly, tolerance of size cooperation and surface roughness to copper material locating stud require very high, if the assembling of copper material locating stud and articulation hole is too loose in the diaxon rotary course, can causes the dislocation of each hole site, thereby directly influence the actual life in assembly quality and the ship's navigation.Surface roughness is excessive, is pressed into or pulls out the articulation hole surface quality that locating stud will directly influence processing.Moreover during assembling copper material locating stud, itself and articulation hole are interference fit, therefore very inconvenience of dismounting.At last, because copper material locating stud in use often causes self deformation to cause its size no longer accurate, make the size of boring processing that error also take place, so it can not use repeatedly.
The model utility content
The technical problems to be solved in the utility model is inconvenient for the locating stud loading and unloading that overcome prior art, and not repeatedly used defective provides a kind of easy accessibility, can use lower-cost taper shell type locating stud repeatedly in course of working.
The utility model solves above-mentioned technical problem by following technical proposals:
A kind of holding down bolt, it comprise bolt and with this bolted nut, packing ring and back-up ring, its characteristics are, it comprises that also one is sheathed on the sleeve on this bolt, and its inwall is taper, and the sidewall of this sleeve is provided with two or more expansion grooves vertically, one end of this expansion groove extends to an opening of this sleeve, and this bolt body is provided with a tapering that is complementary with the taper of this sleeve inner.
Wherein, this expansion groove also comprises the other end of being located at this expansion groove, and coupled logical auxiliary expanding groove.Finish circumferential expansion to help this sleeve; further eliminate holding down bolt and the gap, location between articulation hole of being positioned; and play a protective role when sleeve carries out adjacent circumferential expansion, the tail end at the expansion groove when preventing to expand causes excessive deformation and shortens its working life.
Wherein, this auxiliary expanding groove is a circular hole.
Wherein, this auxiliary expanding groove circumferentially is provided with along this sleeve, and is rectangular.
Wherein, this expansion fluted shaft is symmetrically set in this sleeve lateral wall, makes that the location of bolt in articulation hole is more accurate, makes sleeve in use evenly expand to circumferential direction simultaneously, improves working life.
Wherein, two openings of this sleeve are equipped with some these expansion grooves, and the different expansion groove space of opening direction is provided with.
Wherein, the opening of this sleeve is provided with rounding, to prevent that sharp edge from forming impression and destroying articulation hole internal diameter size precision in articulation hole.
Wherein, this sleeve is that elastic material is made.
Wherein, the tapering of the tapering of the taper of this sleeve lining and this bolt outer surface is 1: 40.
Positive progressive effect of the present utility model is: the holding down bolt in the utility model adopts the sleeve of expansible structure, makes bolt not be subjected to the restriction of articulation hole internal diameter size variation within the specific limits, has enlarged using scope.Its sleeve inner conical design can well be finished the location work between two articulation holes, eliminates the gap, location fully.Simultaneously, have convenient disassembly, physical life is long, the advantage of survivable articulation hole internal diameter precision.
Description of drawings
Fig. 1 is the sectional view of the holding down bolt among the utility model embodiment 1.
Fig. 2 is the sectional view of the sleeve of the holding down bolt among Fig. 1.
Fig. 3 is the sectional view of the sleeve of the holding down bolt among the utility model embodiment 2.
Fig. 4 is the stereogram of the sleeve of the holding down bolt among the utility model embodiment 3.
Embodiment
Enumerate preferred embodiment below, and 1-4 comes the clearer the utility model that intactly illustrates in conjunction with the accompanying drawings.
As illustrated in fig. 1 and 2, holding down bolt of the present utility model comprises a sleeve 1, and the inwall of sleeve 1 is taper, and the tapering of this taper is 1: 40 in the present embodiment, thereby sleeve 1 forms a little opening and the big opening that internal diameter is bigger that internal diameter is less.Be provided with eight expansion grooves 2 on this sleeve 1 sidewall axisymmetrically, at the large and small opening of sleeve 1 four expansion grooves 2 are arranged all, and expansion groove 2 spaces of different direction be provided with.Earlier sleeve 1 is placed in two articulation holes of stern tube shaft 8 and jack shaft 9 alignment, and the length of this sleeve 1 wears a bolt 4 less than the total depth of these two articulation holes in this sleeve 1.The body of this bolt 4 is provided with a tapering that matches with this sleeve 1 inwall.In addition, one rounding 10 all is set, causes impression to destroy the internal diameter size precision of articulation hole at the articulation hole inwall with the sharp edge that prevents sleeve 1 at the edge of sleeve 1 large and small opening.
During assembling sleeve 1 is put into the articulation hole of two alignment, bolt 4 is inserted wherein by the big opening of sleeve 1.During locking, it is fixing with nut 7 that a side of close sleeve 1 big opening is provided with a packing ring 6 backs on the bolt 4.At a side sheathed back-up ring 5 of bolt 4 near sleeve 1 little opening, the end face of the interior edge face of back-up ring 5 and sleeve 1 is close to, in the exterior edge face of back-up ring 5 exterior edge faces, and one packing ring 6 is set, screws on nut 7 in the outside of packing ring 6 at last in the exterior edge face of back-up ring 5 side a little more than articulation hole.When screwing the nut 7 of back-up ring 5 exterior edge face sides, back-up ring 5 is pressed further in the articulation hole, and the sleeve of being close to it 1 moves to the opposite side of bolt 4 vertically, thus the articulation hole of radial dilatation locking simultaneously.
During dismounting, remove the nut 7 and the packing ring 6 at two ends simultaneously, take out the back-up ring 5 that is positioned at sleeve 1 little opening and put, assemble packing ring 6 and nut 7 then successively to sleeve 1 big opening.Back-up ring 5 is pressed further into articulation hole when screwing the nut 7 that is positioned at sleeve 1 little opening end, the sleeve of being close to it 1 joins its pine to a side shifting of bolt 4 vertically, adopt to shrink nut at last and impels sleeve 1 further to finish after the radial contraction its taking-up.
As shown in Figure 3; sleeve 1 ' in the present embodiment is with embodiment 1 difference; it is circle hole shape also to be provided with an auxiliary expanding groove 3 ' at the other end of expansion groove 2; finish circumferential expansion to help sleeve 1 '; further eliminate holding down bolt and the gap, location between articulation hole of being positioned; and play a protective role when sleeve 1 ' carries out adjacent circumferential expansion, the tail end at expansion groove 2 when preventing to expand causes excessive deformation and shortens its working life.Remaining part and embodiment 1 are identical.
As shown in Figure 4; sleeve 1 in the present embodiment " be with embodiment 1 difference; the other end at expansion groove 2 also is provided with an auxiliary expanding groove 3 " it is rectangular; it is along sleeve 1 " axially be provided with; with further help sleeve 1 " finish circumferential expansion; eliminated holding down bolt more up hill and dale and the gap, location between articulation hole of being positioned; and at sleeve 1 " played protective action when carrying out adjacent circumferential expansion, the tail end at expansion groove 2 when preventing to expand causes excessive deformation and shortens its working life.Remaining part and embodiment 1 are identical.
In addition, the utility model is not done concrete restriction to the number that is provided with of expansion groove, and those skilled in the art can adjust accordingly according to actual needs.For example, circumferentially evenly distribute two or three etc.
In the like product, also have and adopt the hydraulic pressure fitting-up bolt to carry out the articulation hole location, but this device manufacture cost is quite high, and need more auxiliary facility, practical inconvenience during dismounting.The utility model then has cheap for manufacturing cost, the simple advantage of easy accessibility, and because its special expansion groove structure makes the contraction of its sleeve and spreading performance substantially exceed the hydraulic pressure fitting-up bolt, usage range is wider.
Though more than described embodiment of the present utility model, but those skilled in the art is to be understood that, these only illustrate, and under the prerequisite that does not deviate from principle of the present utility model and essence, can make numerous variations or modification to these mode of executions.Therefore, protection domain of the present utility model is limited by appended claims.
Claims (9)
1. holding down bolt, it comprise bolt and with this bolted nut, packing ring and back-up ring, it is characterized in that, it comprises that also one is sheathed on the sleeve on this bolt, and its inwall is taper, and the sidewall of this sleeve is provided with two or more expansion grooves vertically, one end of this expansion groove extends to an opening of this sleeve, and this bolt body is provided with a tapering that is complementary with the taper of this sleeve inner.
2. holding down bolt according to claim 1 is characterized in that, this expansion groove also comprises the other end of being located at this expansion groove, and coupled logical auxiliary expanding groove.
3. holding down bolt according to claim 2 is characterized in that, this auxiliary expanding groove is a circular hole.
4. holding down bolt according to claim 2 is characterized in that, this auxiliary expanding groove circumferentially is provided with along this sleeve, and is rectangular.
5. holding down bolt according to claim 1 is characterized in that, this expansion fluted shaft is symmetrically set in this sleeve lateral wall.
6. holding down bolt according to claim 1 is characterized in that, two openings of this sleeve are equipped with some these expansion grooves, and the different expansion groove space of opening direction is provided with.
7. holding down bolt according to claim 1 is characterized in that the opening of this sleeve is provided with rounding.
8. holding down bolt according to claim 1 is characterized in that, this sleeve is that elastic material is made.
9. holding down bolt according to claim 1 is characterized in that, the tapering of the tapering of the taper of this sleeve lining and this bolt outer surface is 1: 40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200759789U CN201461669U (en) | 2009-08-07 | 2009-08-07 | Positioning bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200759789U CN201461669U (en) | 2009-08-07 | 2009-08-07 | Positioning bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461669U true CN201461669U (en) | 2010-05-12 |
Family
ID=42389022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200759789U Expired - Lifetime CN201461669U (en) | 2009-08-07 | 2009-08-07 | Positioning bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461669U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2519996C1 (en) * | 2013-01-09 | 2014-06-20 | Открытое Акционерное Общество "Силовые Машины - Зтл, Лмз, Электросила, Энергомашэкспорт" (Оао "Силовые Машины") | Knockout gapless attachment of flanges |
| CN105059472A (en) * | 2015-05-28 | 2015-11-18 | 沪东中华造船(集团)有限公司 | Ship shafting flange fitting bolt installation assisting tool and assembling method |
| CN105485308A (en) * | 2015-12-29 | 2016-04-13 | 武汉正通传动技术有限公司 | Reamed hole bolt provided with outer ring |
| CN105570256A (en) * | 2014-10-11 | 2016-05-11 | 中国航空工业集团公司西安飞机设计研究所 | Adjustable interference fit connecting piece |
| CN105805126A (en) * | 2016-05-27 | 2016-07-27 | 俊川建筑科技有限公司 | Conical bolt easy to disassemble |
| CN107030479A (en) * | 2016-12-26 | 2017-08-11 | 北京金风科创风电设备有限公司 | Dislocation adjusting device and flange dislocation adjusting method |
| CN107701567A (en) * | 2017-10-21 | 2018-02-16 | 中船澄西船舶修造有限公司 | Bolt in Shafting Alignment of Vessels |
| CN107717845A (en) * | 2017-11-21 | 2018-02-23 | 索格菲（苏州）汽车部件有限公司 | A kind of predetermined set of the not de- bolt of pine |
| CN107830070A (en) * | 2017-10-21 | 2018-03-23 | 中船澄西船舶修造有限公司 | The localization method of marine shafting flange connection |
-
2009
- 2009-08-07 CN CN2009200759789U patent/CN201461669U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2519996C1 (en) * | 2013-01-09 | 2014-06-20 | Открытое Акционерное Общество "Силовые Машины - Зтл, Лмз, Электросила, Энергомашэкспорт" (Оао "Силовые Машины") | Knockout gapless attachment of flanges |
| CN105570256A (en) * | 2014-10-11 | 2016-05-11 | 中国航空工业集团公司西安飞机设计研究所 | Adjustable interference fit connecting piece |
| CN105059472A (en) * | 2015-05-28 | 2015-11-18 | 沪东中华造船(集团)有限公司 | Ship shafting flange fitting bolt installation assisting tool and assembling method |
| CN105485308A (en) * | 2015-12-29 | 2016-04-13 | 武汉正通传动技术有限公司 | Reamed hole bolt provided with outer ring |
| CN105805126A (en) * | 2016-05-27 | 2016-07-27 | 俊川建筑科技有限公司 | Conical bolt easy to disassemble |
| CN107030479A (en) * | 2016-12-26 | 2017-08-11 | 北京金风科创风电设备有限公司 | Dislocation adjusting device and flange dislocation adjusting method |
| CN107030479B (en) * | 2016-12-26 | 2019-05-24 | 北京金风科创风电设备有限公司 | Dislocation adjusting device and flange dislocation adjusting method |
| CN107701567A (en) * | 2017-10-21 | 2018-02-16 | 中船澄西船舶修造有限公司 | Bolt in Shafting Alignment of Vessels |
| CN107830070A (en) * | 2017-10-21 | 2018-03-23 | 中船澄西船舶修造有限公司 | The localization method of marine shafting flange connection |
| CN107717845A (en) * | 2017-11-21 | 2018-02-23 | 索格菲（苏州）汽车部件有限公司 | A kind of predetermined set of the not de- bolt of pine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |